Trellis Stacked Bar Chart
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Vega-Lite JSON Specification
{
"$schema": "https://vega.github.io/schema/vega-lite/v4.json",
"data": {"url": "data/barley.json"},
"mark": "bar",
"encoding": {
"column": {"field": "year"},
"x": {"field": "yield", "type": "quantitative", "aggregate": "sum"},
"y": {"field": "variety", "type": "nominal"},
"color": {"field": "site", "type": "nominal"}
}
}